Ankle jumper



FIG. 1 is a front-left-top perspective view of an ankle jumper, showingmy new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a schematic diagram of the claimed design, wherein the brokenlines are shown for illustrative purposes only and form no part of theclaimed design.

The ornamental design for an ankle jumper, as shown and described.